PROTOTRACHEATA, 141 
and South America, since its affinities appear to lie with the Australasian 
Peripatoides. 
In the case of the tropical American forms, it seems probable that Central America 
and the Antilles independently received their prototracheate faunas from South 
America. 
Recent LITERATURE. 
Bouvier, E, L.—Ann. Sci. Nat. Zool. (9) ii. pp. 1-376 (1905) *, and v. pp. 61-318 (1907). 
Sepewicx, A.— Quart. Journ. Micr. Sci. lii. pp. 379-406 (1908). 
Crarx, A. H.—Smith. Mise. Coll. lx. no. 17, pp. 1-5 (1913); id. Proc. Biol. Soc. Wash. xxvi. 
pp. 15-20 (1913). 
* In justice to Mr. F. 0. Pickard Cambridge, it should be explained that in Bouvier’s Monograph, figg. 1 
and 2, pl.i., depicting examples of Peripatus simoni from Breves on the Amazons, are reproductions of water- 
colour sketches taken from life by Mr. Cambridge, who collected the specimens at that locality. ‘The 
sketches were sent, with the specimens, to Bouvier from the British Museum, but apparently without any 
indication that Mr. Cambridge was the artist and collector. 
